Indiana Science Grade 6

Chapter 7: Oceans

Oceans

1.
Which of the following is NOT true of offshore ocean waves?
A)Floating objects and water particles move forward.
B)Floating objects rise and fall with the wave but do not move forward.
C)The water particles remain in the same place.
D)The energy of the wave continues to move forward.
2.
Energy is transferred from organism to organism through __________.
A)food chains
B)respiration
C)waves
D)producers
3.
Shoreline erosion can be a result of all of the following EXCEPT __________.
A)longshore currents
B)hurricanes
C)waves
D)density currents
4.
Which of the gases from the atmosphere is not dissolved in seawater?
A)carbon dioxide
B)argon
C)nitrogen
D)oxygen
5.
__________ distribute heat from one region to another.
A)Density layers
B)Density currents
C)Surface currents
D)Surface layers
6.
Tides are caused by __________.
A)the rise and fall of water
B)strong winds
C)changes in ocean salinity
D)the gravitational attraction of the Sun and the Moon
7.
Water currents in the ocean curve because of __________.
A)wind
B)upwellings
C)the Sun
D)the Coriolis effect
8.
If density currents stopped forming, all of the following results may occur EXCEPT __________.
A)changing rainfall patterns
B)decreasing temperatures
C)increased upwellings
D)increasing temperatures
9.
Which of the following animals is NOT a nekton?
A)diatom
B)shark
C)dolphin
D)turtle
10.
The temperature of a __________ quickly decreases as the depth increases.
A)surface layer
B)deep water layer
C)syncline
D)thermocline
11.
The ocean and life within it provide all of the following EXCEPT __________.
A)transportation of seeds, animals, and materials
B)70 percent of the oxygen on our planet
C)resources including food, medicines, and salt
D)large amounts of carbon dioxide
12.
The height of an ocean wave is affected by all of the following EXCEPT the __________.
A)temperature of the wind
B)length of time the wind blows
C)distance over which the wind blows
D)wind velocity
13.
Ocean currents that form when coastal waters are blown away from shore are called a(n) __________.
A)density current
B)coastal current
C)upwelling
D)surface current
14.
Most __________ are one-celled organisms.
A)consumers
B)bottom-dwellers
C)nekton
D)plankton
15.
Water is set in motion by __________.
A)stationary objects
B)upwellings
C)the Coriolis effect
D)wind
16.
An ecosystem will contain all of the following organisms EXCEPT __________.
A)decomposers
B)consumers
C)producers
D)synthesizers
17.
Ocean water may have come from all of the following EXCEPT __________.
A)water vapor
B)volcanic eruptions
C)lava flows
D)torrential rains
18.
Which of the following statements is NOT true?
A)Temperature increases as depth decreases.
B)Pressure increases as depth increases.
C)Temperature decreases as depth increases.
D)Pressure decreases as depth increases.
19.
Density currents occur when __________.
A)winds blow across the surface of the water
B)more dense seawater sinks beneath less dense seawater
C)surface water begins to warm up
D)the Coriolis effect is in action
20.
Warm surface currents run past all of the following areas EXCEPT __________.
A)Iceland
B)California
C)North Carolina
D)Florida
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.